get image

[alicera]

How to get the youtube images？
like opencv get the frame

[Prasantacharya]

as in get the thumbnail, or get the frames of the video?
For the thumbnail, you could do something like youtube-dl --write-thumbnail <video-link>
For getting all the frames, after you download the video, I would use something like ffmpeg to extract the frames, the command would look something like: ffmpeg -i <video-file> -ss <video-length> -vframes 1 out.png

[alicera]

How to use the command line to get different size images if the youtube link has three resolutions

youtube-dl --write-thumbnail <video-link>

[ghost]

Not related to youtube-dl. Go find other forums.

There's --write-all-thumbnails option.